How To – Disable IPv6 on a Windows Machine

To completely disabled IPv6 on a machine you need to disable it from the Network Adapter and then also from the registry. To do this follow these steps:

Disable IPv6 from the Network Adapter

First you need to disable IPv6 from the network adapter. To do this, follow these steps:

1. Control Panel
2. Network and Sharing Center
3. Change adapter settings
4. Double click on network adapter
5. Properties
6. De-select Internet Product Version 6 (TCP/IPv6)
7. Click OK

Disable IPv6 in the Registry

Next we need to disable IPv6 in the registry. To do this, follow the steps below:

1. Start >> Run >> regedit
2. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters
3. Right-Click >> New >> DWORD (32-bit) Value
4. Name: DisabledComponents
5. Data: 0xffffffff (Hexadecimal) or 4294967295 (Decimal)

And that is it. You have now successfully disabled IPv6 on your Windows machine.